Emerging dev-java/fop-0.95

Hello.

I have copied the ebuilds for dev-java/fop-0.95 and
dev-java/batik-1.7-r1 from the java-experimental overlay into my local
overlay and emerging fop on my ~amd64 system stops with the error:

>>> Emerging (2 of 2) dev-java/fop-0.95 from local
 * fop-0.95-src.zip RMD160 SHA1 SHA256 size ;-) ...                      [ ok ]
 * checking ebuild checksums ;-) ...                                     [ ok ]
 * checking auxfile checksums ;-) ...                                    [ ok ]
 * checking miscfile checksums ;-) ...                                   [ ok ]
 * Using: sun-jdk-1.6
>>> Unpacking source...
>>> Unpacking fop-0.95-src.zip to /tmp/portage/dev-java/fop-0.95/work
Changing ignoresystemclasses to true for available tasks in build.xml
Rewriting build.xml
Traceback (most recent call last):
  File "/usr/lib64/javatoolkit/bin/xml-rewrite-2.py", line 301, in <module>
    f = open(os.path.basename(file),"r")
IOError: [Errno 2] No such file or directory: 'build.xml'


Any clues?

Romildo